Sugar-cane-mill housing.



R. R. HIND.

SUGAR CANE MILL HOUSING.

APPLICATION FILED DEC. 2. I916.

Patented Dec. 25, 1917.

2 SHEETS-SHEET 1-.

jwenzr R. R. HIND.

SUGAR CANE MILL HOUSING.

APPLICATION FILED DEC. 2. 1916.

1,251,025. Patented m2 17.

UNITED STATES FATET TT F TQFt ROBERT BENTON KIND, O1? HONOLULU,TEE/BITCH! OF HAWAII.

SUGAB-CANE-MILL HOUSING.

Application filed December 2, 1916.

To all whom it may concern:

Be it known that I, ROBERT BENTON HIND, a citizen of the United Statesof America, and a resident of Honolulu, Territory of Hawaii, haveinvented certain new and useful Improvements in Sugar-Cane-MillHousings; and I dohereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to.

make and use the same.

This invention relates to sugar-cane mill housings.

Mills of the three-roller type have been generally improved by theplacing of hydraulic jacks at the tops of the housings which operate invarious manners to overcome the uneven thrust acting along lines drawnthrough the centers of the top and front rollers and the top and backrollers. lVhile this has done much to advance the usefulness of themill, there still remains in the commercial mills, a detrimentalfeature, and that is the binding of the top roller brasses in thehousing gaps. This binding is not altogether due to differences inthrusts above referred to, but to a limited extent to the top rollergetting out of horizontal alinement axially and causing a twisting ofthe top roller brasses and a second binding of the same in the housinggaps, so that the roller is not free to move upwardly and downwardly.

It is, therefore, an object of my invention to provide a housing bymeans of which the detrimental feature referred to is eliminated.

In the drawings Figure 1 is a side elevation of a mill constructed inaccordance with my invention, the cap and ram-carrying links being shownin dotted lines in their inoperative positions;

Fig. 2 is a fragmental plan view; and

Fig. 3 is a side elevation.

The embodiment of the invention illustrated in the drawings includes acap A, which is pivoted on a pin B carried by the housing, and ofsuflicient size to resist any shearing strains which are incident to theplacing of the top roller under hydraulic pressure. A pair of links Care pivoted to a pin D, which latter is carried by the housing and arelocated on the opposite sides of the housing. These links are connectedtogether at their upper ends by a rod E, to which the hydraulic ram F issecured by means of a suitable strap I. This ram F op- Specification ofLetters Patent.

Patented Dec. 25, 191 *7.

sci-i511 No. 134,709.

erates in a suitable cylinder G and is prevented from being displacedfrom the cylinder by a tap bolt J. Thus the links C, the ram F and thecylinder G may be swung to the dotted line position illustrated in Fig.1, when the cap A is swung to the dotted line position, or the cylinderG may be permitted to rest upon the surface L of the cap A when thelatter is in the full line or operative position. In order that the capA, which is prevented from having side thrust at one end by the pin B,may be prevented from having such thrust, at the other end, a lug K iscast upon the housing and is received in a recess M in the cap when thelatter is swung to its operative position. The upper roller brass H issemi-cylindrical and fits into the can A and may be cooled by anysuitable water-cooling arrangement.

When the mill is in operation, the cap A is free to rise and fall aboutthe pivot B, so as to accommodate itself to the movement of the toproller, the hydraulic pressure being applied in the usual manner withthe ram F remaining stationary and the cylinder G, which bears directlyupon the cap A, moving.

It will be obvious that the objectionable binding of the brasses, asreferred to in the fore-part of this specification, is overcome by myinvention, and there will be little mechanical resistance to the freemovement of the top roller, so that it will be permitted to float uponthe bagasse feed. The hinging of the cap A will permit of a slightlygreater relative opening between the to roller and the feed roller thanbetween the top roller and the discharge roller, which is a considerableadvantage.

While I have illustrated and described a particular embodiment of myinvention, it has merely been for the sake of convenience, and I do notwish to be limited to that particular embodiment, as it is obvious thatnumerous changes may be made within the scope of the claims.

What I claim is 1. In a sugar-cane mill of the three-roller type, thecombination with a housing body, of a cap pivoted at one end to the bodyand carrying a roller brass, and means for yieldingly holding the otherend of the cap to the body.

2. In a sugar-cane mill of the three-roller type, the combination with ahousing body, of a. cap mounted thereon for movement in an arcuate path,and a roller brass carried by the cap.

3. In a sugar-cane mill, the combination with a housing body, of a cappivoted at one end to the body, and hydraulic pressure-applying meansfor yieldingly holding the 0pposite end of the cap to the body.

4. In a sugar-cane mill, the combination with a housing body, of a cappivoted at one end to the body, and hydraulic pressureapplying meansoperable on the opposite end of the cap, said means being movable out ofthe line of movement of the cap about its pivot.

5. In a sugar-cane mill, the combination with a housing body, of a cappivoted at one end to the body, means for yieldingly holding theopposite end of the cap to the body, and means for preventing thelateral movement of the cap With relation to the body.

6. In a sugar-cane mill of the three-roller type, the combination with ahousing body, of means for yieldingly holding the top roller in positionand arranged to permit the movement of the roller in such a directionthat the distance between the upper roller and the feed roller will beincreased to a greater extent than the distance between the upper rollerand the discharge roller.

In testimony whereof I afiix my signature.

ROBERT BENTON HIND.

copies of this patent may be obtained for five cents each, by addressingthe Commissioner 0! Patents,

Washington, D. G.

